Rolling Over the obstacleA pure biketrials technique that will take you up any gnarly rocks and odd shapes, without a lot of run up
distance and virtually no effort, just cycling along. But it takes a good synchronisation of the pedaling and the weight
transfer on the front wheel to make it roll smoothly. You can Start about one crank turn away from the obstacle...on your good
pedal. Roll the first half crank turn slowly to approach the step or wall.

Start about one crank turn away from the obstacle...on your good pedal.

1° On the second half crank turn, push on the goofy pedal (left)
to lift the front wheel up to the edge of the obstacle. You must
aim right at the edge, not behind.

2° As the front wheel takes off, keep the knees slightly
flexed, ready for an impulse as soon as the front wheel passes
or touches the top of the kerb.

3° Finish the crank turn on your good pedal and, from the
highest position (on the pedals), throw your shoulders over the
bars with an impulse upwards.

The rear wheel takes off while the front wheel rolls on the obstacle.See this move in a video.
Also check out that move over a big truck tyre.

Smooth...SmoothThis is technically the smoothest way to climb. You should really
force yourself to lift the front wheel only when pushing on the
bad-foot pedal, so that when the front wheel reaches the edge of the obstacle, you end up
on your good foot ready to take your impulse, and able to throw your
shoulders over the bars to lift the rear wheel. When the move is
well done, you can even roll directly on the front wheel, passing
over the edge of the obstacle without touching it. At the
beginning, you'll tend to smash your crank into the edge you're trying to climb, so
get yourself a decent rock ring. A bad habit is to use the front
brake once the front wheel has landed, to give some extra lift to the rear wheel.
You should really try to learn without braking on the front (else, how do you get the quiet and smooth rolling part?).

The next levelWhen the obstacle is too high for just touching the edge of the
wall with the front wheel, then the roll-over technique can be
pushed to its limit by giving a strong impulse in the good
pedal just before take off, and throwing your shoulder and body
weight over the bars even before the front wheel reaches the
obstacle. This also works for very steep but rounded obstacles (large boulders, cable reels, concrete pipes etc.) where you know you'll be able
to secure some grip if you roll up high enough.

You end up in the air, with the front wheel above the
edge of the obstacle, and using your body inertia to pull the
bike upwards with you, over the edge. This could look like a bunny hop, but there is a huge
difference: your body weight is really in front of the bike over
the bars, and you land on the front wheel instead of landing on
the rear. If you overdo it, you just end up rolling in balance on
the front wheel. In some rare cases, you'll be able to use a
little lump in the run up space to pull a bunny hop and carry on
as a roll-over (because landing on the rear would make you fall
back. The next technique, starting exactly the same, is to bang the front wheel on
the edge of the wall or just below, in an ascending move.

You'll need a lot of practice before you can even think about it. In the mean time,
you can try to climb onto small kerbs
sideways. Quite safe, and virtually no space needed.

At a Pro level: pushing the move furtherRolling over is an amazingly smooth technique when
fully exploited by top riders, with loads of variations and finish styles. It really looks as if there is direct
a slope. Depending on the obstacle, the real trick is to throw the body far enough to ensure plenty of momentum and
a good grip.